From: qballlives AT aol DOT com (QBallLives)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Allegro:  no_persp_project?
Date: 13 Mar 1998 20:35:11 GMT
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>Anthony Salter <asalter AT wans DOT net> wrote:
>
>>I'm currently writing a 3D isometric engine a la Dungeon Keeper,
>>Syndicate Wars, and Ultima IX (before it was turned into a 3D action
>>game).  Which means that I DON'T want to correct the perspective with
>>respect to the Z axis.  Anyone out there know a way to do this with
>>Allegro's current functions, or am I going to have to come up with a
>>no_persp_project?  (Which, naturally, I'll share with everyone once it
>>gets debugged).
>
>Debug? A function like this?
>
>void no_persp_project(fixed x,y,z,*xout,*yout)
>{
> *xout=x; *yout=y;
>}
>
>If necessary, add scaling, but that's basically it.
>
>

if you're talking no perspective- you're talking parallel projection
just strip the z off...


Jim the loiterer
aloiterer AT juno DOT com
http://www.fortunecity.com/skyscraper/gigahertz/179/index.html